Screening for rheumatic heart disease: The reliability of anterior mitral valve leaflet thickness measurement.

Echocardiography
Luke David HunterPhilip G Herbst

Abstract

Studies determining the reliability of the World Heart Federation (WHF) anterior mitral valve leaflet (AMVL) measurement are limited by the introduction of bias in their test-retest analyses. This study sought to determine the reliability of the current AMVL measurement while controlling for systematic bias. Retrospective analysis of echocardiographic data from 16 patients with previous acute rheumatic fever was performed. Included in this study was an optimized cine loop of the mitral valve (MV) [reader-optimized measurement (ROM]) in the parasternal long-axis view and an optimized still image of the MV obtained from the same cine loop [specialist-optimized image (SOI)]. Each still image and associated cine loop was quadruplicated and randomized to determine intra- and inter-rater agreement and quantify the impact of zoom on AMVL measurement. Specialist-optimized image without zoom reflected the highest degree of agreement in both cohorts with an ICC of 0.29 and 0.46. The agreement in ROM images without zoom was ICC of 0.23 and 0.45. The addition of zoom to SOI decreased agreement further to an ICC of 0.20 and 0.36. The setting associated with the poorest agreement profile was ROI with zoom with an ICC of 0.13 and 0.34, respec...Continue Reading

References

Feb 9, 2010·Theriogenology·P F Watson, A Petrie
Oct 27, 2010·Biometrical Journal. Biometrische Zeitschrift·Adelin Albert, Lixin Zhang
May 16, 2014·Pediatric Cardiology·Andrea BeatonCraig Sable
Apr 25, 2015·Circulation·Michael H GewitzUNKNOWN American Heart Association Committee on Rheumatic Fever, Endocarditis, and Kawasaki Disease of the Council on Cardiovascular
Dec 2, 2015·International Journal of Cardiology·Raoul BacquelinMariana Mirabel
Apr 14, 2017·Heart Asia·Rachel H WebbNigel J Wilson

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